Physics Questions and Answers
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
0.52cm3
1.42cm3
1.87cm3
5.22cm3
14.22cm3
Correct answer is B
No explanation has been provided for this answer.
2.4:1
2.0:1
1.2:1
1.0:1
1.0:2
Correct answer is D
No explanation has been provided for this answer.
6cm3
4cm3
3cm3
2cm3
1cm3
Correct answer is A
P1V1 = P2V2
When the bubble comes to the surface and pressure drops 3 times, the volume increases 3 times.
V2 = 3 x 2
= 6 cm3
90oC
80oC
50oC
40oC
30oC.
Correct answer is A
Final Temperature = m1T1+m2T2m1+m2
where m1 and m2 are the weights of the water in the first and second containers.
T1 and T2 are the temperatures of the water in the first and second container.
Given Final temperature = 50°C;
Let m1 = b, then m2 = 2b.
T1 = t; T2 = 30°C
∴
50 = \frac{bt + 2b(30)}{3b}
50(3b) = bt + 2b(30) \implies 150b = b(t + 60)
150 = t + 60 \implies t = 150 - 60 = 90°C
0oC
2/9oC
4/9oC
9/4oC
9/2oC
Correct answer is C
No explanation has been provided for this answer.